201247221

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{504379}}^1$

素因数の和:504408

約数の個数: 16

約数和(自身を含む): 322803200

約数和(自身を除く): 121555979

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 504379, 1513137, 3530653, 9583201, 10591959, 28749603, 67082407, 201247221]

約数ペア:

[(1, 201247221), (3, 67082407), (7, 28749603), (19, 10591959), (21, 9583201), (57, 3530653), (133, 1513137), (399, 504379)]